* {
  padding: 0;
  margin: 0;
  box-sizing: border-box;
}

html,
body {
  width: 100%;
  height: 100%;
  font-size: 16px;
}

.navbar {
  list-style: none;
  width: 100%;
  box-sizing: border-box;
  height: 60px;
  display: flex;
  justify-content: space-between;
  position: relative;

  li {
    flex: 1;

    a {
      display: block;
      // display: flex;
      // justify-content: space-between;
      // box-sizing: border-box;
      // padding: 0 60px;
      // align-items: center;
      line-height: 60px;
      text-align: center;
      width: 100%;
      height: 100%;
      font-size: 20px;
      color: #fff;
      text-decoration: none;
      background: #f40;
    }

    .active {
      background: gold;
      color: black;
    }
  }

  .xiao {
    position: absolute;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    background: black;
    color: white;
    text-align: center;
    line-height: 30px;
    left: 50%;
    top: 15px;
  }
}